I have been trying to get as much information on Japanese culture as I can. The language itself, doesn't seem to be too difficult, however, there seems to be a bit of a problem when I actually try to communicate and make friends with someone from Japan. I get that Japanese are more private and won't be disrespectful to your face, but I want to actually make friends with some native speakers. What is the best way to go about doing this? I've gotten in trouble for just messaging some people out of the blue to introduce myself, and i'm trying to avoid making anyone uncomfortable.
Also are there any hot button issues or things that I should ABSOLUTELY avoid talking about at ALL COSTS? Please do me a favor and tell me now so that I don't gravely offend someone unintentionally.